java - 这些方法是否具有相同的输出？

Question

protected synchronized boolean isTimeoutOccured(Duration timeoutDuration) {
    DateTime now = new DateTime();

    if (timeoutOccured == false) {
        if (new Duration(requestTime.getMillis(), now.getMillis()).compareTo(timeoutDuration) > 0) {
            timeoutOccured = true;
        }
    }

    return timeoutOccured;
}

protected boolean isTimeoutOccured2(Duration timeoutDuration) {

    return atomicTimeOut.compareAndSet(false, new Duration(requestTime.getMillis(), new DateTime().getMillis()).compareTo(timeoutDuration) > 0);

}

Answer 1

是的，但原子原语更有效。